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US8398106B2 - Master device for a closed hydraulic system of handlebar-steered vehicles - Google Patents

Master device for a closed hydraulic system of handlebar-steered vehicles Download PDF

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Publication number
US8398106B2
US8398106B2 US13/409,880 US201213409880A US8398106B2 US 8398106 B2 US8398106 B2 US 8398106B2 US 201213409880 A US201213409880 A US 201213409880A US 8398106 B2 US8398106 B2 US 8398106B2
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US
United States
Prior art keywords
basic body
connecting element
line connecting
master device
hydraulic line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US13/409,880
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English (en)
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US20120161420A1 (en
Inventor
Hubert Eberlein
Joachim Hujer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gustav Magenwirth GmbH and Co KG
Original Assignee
Gustav Magenwirth GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gustav Magenwirth GmbH and Co KG filed Critical Gustav Magenwirth GmbH and Co KG
Assigned to GUSTAV MAGENWIRTH GMBH & CO. KG reassignment GUSTAV MAGENWIRTH GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NENNING, BERND, EBERLEIN, HUBERT, HUJER, JOACHIM
Publication of US20120161420A1 publication Critical patent/US20120161420A1/en
Priority to US13/713,405 priority Critical patent/US8511700B1/en
Application granted granted Critical
Publication of US8398106B2 publication Critical patent/US8398106B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L3/00—Brake-actuating mechanisms; Arrangements thereof
    • B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
    • B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
    • B62K23/02—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
    • B62K23/06—Levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/18—Connection thereof to initiating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/28—Valves specially adapted therefor
    • B60T11/30—Bleed valves for hydraulic brake systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
    • B60T17/222—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems by filling or bleeding of hydraulic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • B60T7/108—Disposition of hand control with mechanisms to take up slack in the linkage to the brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/126—Details not specific to one of the before-mentioned types adjustment for wear or play

Definitions

  • the present invention lies in the field of brakes.
  • the present disclosure relates to a master device for a closed hydraulic system of handlebar-steered vehicles.
  • the invention relates to a master device for a closed hydraulic system of handlebar-steered vehicles, in particular, to a master device for a hydraulic brake system or a hydraulic clutch system of handlebar-steered vehicles, and also, in particular, for a bicycle hydraulic brake system.
  • Closed hydraulic systems of said type are known for example from the bicycle rim brake systems from the company Gustav Magenwirth GmbH & Co. KG which is based in Bad Urach, Germany, which closed hydraulic systems are marketed under the designation HS33.
  • the invention provides a master device for a closed hydraulic system of handlebar-steered vehicles that overcomes the hereinafore-mentioned disadvantages of the heretofore-known devices and methods of this general type.
  • a master device for a closed hydraulic system of handlebar-steered vehicles having a pressure chamber in which, in the event of actuation of the master device to actuate a slave device, hydraulic fluid is placed under pressure, a hydraulic line connecting element that has a connecting piece for connecting a hydraulic line and a thread section for screwing into a basic body of the master device, and an air bleed opening for bleeding the hydraulic system.
  • the hydraulic line connecting element and the basic body form a valve that closes the connection between the pressure chamber and the air bleed opening when the hydraulic line connecting element is fully screwed in
  • the hydraulic line connecting element has a seal surface and the basic body has a seal element, which seal surface and seal element interact with one another such that the pressure chamber is sealed off with respect to the air bleed opening when the hydraulic line connecting element is fully screwed into the basic body, and the pressure chamber is connected to the air bleed opening when the hydraulic line connecting element is disposed in a partially screwed-in position
  • the hydraulic line connecting element has a seal and the basic body has a seal surface, which seal and seal surface interact with one another such that the pressure chamber is sealed off with respect to the air bleed opening when the hydraulic line connecting element is fully screwed into the basic body, and the pressure chamber is connected to the air bleed opening when the hydraulic line connecting element is arranged in a partially screwed-in position.
  • Said embodiment of the invention has the advantage that the air bleed opening is automatically closed off when the hydraulic line is connected to the hydraulic line connecting element.
  • the hydraulic line connecting element is screwed partially into the basic body and subsequently screwed in fully, such that at the same time the air bleed opening is sealed off by the seal composed of the sealing surface of the hydraulic line connecting element and the sealing element of the basic body.
  • the hydraulic line connecting element and the basic body form a valve that closes the connection between the pressure chamber and air bleed opening when the hydraulic line connecting element is fully screwed in.
  • the hydraulic line connecting element may have a collar that abuts against the basic body when the hydraulic line connecting element is fully screwed in.
  • the hydraulic line connecting element may have a stop and the basic body may have an overload prevention stop against which the stop bears when the hydraulic line connecting element is fully screwed in.
  • Said embodiment of the invention has the advantage of preventing overtightening of the hydraulic line connecting element because the stop offers a very high resistance against the hydraulic line connecting element being screwed in further.
  • the hydraulic line connecting element is screwed into the basic body.
  • This is an exemplary preferred method of mounting the hydraulic line connecting element in the basic body.
  • the hydraulic line connecting element may self-evidently also be attached to the basic body in some other suitable way. It is important that the method of mounting offers two positions, that is to say, an open position, in which a connection exists between the pressure chamber and air bleed opening, and a closed position, in which the connection between the pressure chamber and air bleed opening is closed off.
  • the hydraulic line connecting element interacts with the basic body basically, or in principle, in the manner of a valve.
  • a seal that is, in an exemplary embodiment, configured as a colored O-ring may be disposed on that side of the thread section facing away from the pressure chamber.
  • the seal may be disposed such that it is visible from outside the basic body in the open position (of the valve) and is disposed in the basic body in the closed position (of the valve), such that a visual inspection of the position of the valve is possible during the filling or bleeding of the hydraulic system.
  • the or a further seal or marking may be provided, which indicates the position of the valve.
  • a snap-hook device may be provided, for example, by providing a collar on the end of a projection of the hydraulic line element, which collar engages behind the snap hook, wherein the snap hooks may be provided, for example, in the form of a crown placed into the basic body.
  • the master device may have an angled outlet or a split outlet. This is advantageous, for example, for a common actuation of front wheel and rear wheel brakes.
  • an actuation sensor device that senses the actuation of the master device may be provided.
  • the actuation sensor device may have a magnet and a Hall sensor.
  • other suitable actuation sensor devices may be provided that are known to a person skilled in the art.
  • said embodiments of the invention may be used, for example, to activate a brake light during braking.
  • a switching and/or display device for actuating and/or displaying the state of a vehicle lighting system, of a suspension characteristic, of an electric drive may be provided. Additional switch actuation measures or state displays are conceivable.
  • a master device for a closed hydraulic system of handlebar-steered vehicles having a fastening device for fastening the master device to a handlebar of the handlebar-steered vehicle, in which the fastening device has a handlebar fastening section for receiving the handlebar tube of the handlebar-steered vehicle, which handlebar fastening section encloses a circumferential section of the handlebar tube of more than 180°, in an exemplary embodiment, of more than 181°, in particular, of more than 182°, and, preferably, of approximately 185°.
  • Said embodiment of the invention has the advantage that the mounting of the master device on the handlebar tube of the handlebar-steered vehicle can be carried out very easily.
  • the fastening section simply can be plugged onto the handlebar tube because the fastening section offers a certain amount of hold as a result of the fact that it encloses the handlebar tube by slightly more than 180°.
  • the master device may subsequently be fixed by suitable measures.
  • a clamp having, for example, two screws may be attached to the fastening section such that the fastening section, together with the clamp, fully encloses the handlebar tube, and is clamped onto the latter as a result of the tightening of the screws.
  • the fastening device may have a clamp that interacts with the fastening section such that the fastening section, together with the clamp, encloses the handlebar tube of the handlebar-steered vehicle.
  • the master device may have a master housing in which are disposed a hydraulic cylinder and a piston movable therein with respect to a pressure chamber, with the thrust piece having a rotary bearing receptacle for receiving a bearing journal.
  • the lever may be rotatably mounted on the master housing via the thrust piece.
  • the basic body (as a functional part) may be constructed in the manner of a skeleton or frame, while the covering hood (as a design part), which is in the field of vision, may be produced so as to be visually more appealing.
  • the covering hood may secure and/or cover the bearing journal for the thrust piece.
  • the bearing journal may be secured in the covering hood or the basic body by a snap-action mechanism.
  • the bearing journal may be configured to be removable.
  • the grommet may provide an anti-kink facility for the hydraulic line.
  • the covering hood may be pivotable on the basic body. This has the advantage that the lever and/or the covering hood can be exchanged more easily.
  • the covering hood may be configured as a driving direction indicating device (turn indicator) and/or vehicle lighting system.
  • a cornering light could, for example, be provided.
  • a exemplary automatic brake light switch/motor switch (deactivation of an electric motor during braking) may be integrated in the basic body and/or the covering hood.
  • a Hall sensor or a reed contact may be provided as a switch element, for example, to detect the actuation of the master device.
  • a switching and/or display device may be provided on the basic body and/or on the covering hood.
  • a wear display or a wear indicator may be provided.
  • a sensor for detecting the wear for example of the brake linings or of the clutch linings may be provided.
  • the embodiments of the invention without a separate air bleed opening to be closed off that is to say, in which the hydraulic line element automatically closes off the air bleed bore during the mounting process, have the advantage that they may have right/left symmetry, such that production costs can be saved because it is not necessary to develop and produce different master devices for the left-hand and right-hand sides.
  • the covering hood may be formed from any desired material, for example, from plastic and/or metal and/or carbon and/or ceramic and/or wood or a combination of these materials.
  • the known master devices of closed hydraulic systems have a grip span adjusting device to be able to adjust the distance between the lever and handlebar tube to match the size of the hand of the rider.
  • a disadvantage of the known master devices is that, during adjustment of the grip span, the zero position of the piston in the cylinder of the master device is adjusted, as a result, after the adjustment of the grip span has taken place, the play between the brake linings and the wheel rim must subsequently be adjusted.
  • the angle between the force transmission element, which in the event of an actuation of the master device transmits the force from the lever to the piston via a thrust piece, and the piston is changed during an adjustment of the grip span.
  • the optimum angle of engagement may, for example, be set for an average grip span.
  • a disadvantage is, however, that, for an optimum angle of engagement, different models for different grip spans must be produced at the factory. Otherwise, a non-optimum engagement angle would be generated in the event of extreme grip spans being set.
  • the master device cannot be adapted optimally to other grip spans at a later point in time.
  • the present invention is based on specifying a master device for closed hydraulic systems of handlebar-steered vehicles, the grip span of which master device can be adjusted easily, independently of the position of the piston and independently of the optimum angle of engagement of the force transmission to the piston.
  • the invention achieves this with a master device for a closed hydraulic system of handlebar-steered vehicles according to the invention.
  • a master device for a closed hydraulic system of handlebar-steered vehicles having a pressure chamber in which, in the event of actuation of the master device in order to actuate a slave device, hydraulic fluid is placed under pressure, a lever for actuating the master device, a grip span adjusting device for adjusting the grip span, a thrust piece for the rotatable mounting of the lever on the master device, and a pressure point adjusting and/or braking and/or clutch lining adjusting device for adjusting the pressure point and/or for compensating lining wear, wherein the lever is arranged so as to be pivotable relative to the thrust piece, with it being possible for the angle between the lever and the thrust piece to be adjusted by means of the grip span adjusting device, and wherein the pressure point adjusting and/or brake or clutch lining adjusting device is designed such that the spacing between the thrust piece and the pressure chamber can be adjusted by means of the pressure point
  • Said embodiment according to the invention has the advantage that the grip span adjustment can take place independently of the pressure point adjustment because the grip span can be set by the angle between the lever and the thrust piece.
  • the position of the thrust piece thus remains unchanged during the adjustment of the grip span. Because the position of the thrust piece defines the angle of engagement of the force transmission components for transmitting force from the thrust piece to the piston during the actuation of the master device, the force transmission including the angle of engagement can be set optimally independently of the grip span.
  • the master devices according to the invention also have the advantage that different variants need not be produced for different grip spans in order to obtain an optimum transmission of force in relation to the angle of engagement of the force transmission components.
  • the grip span means, in particular, the distance from that region of the lever on which the rider normally acts with his fingers in order to actuate the master device to the handlebar tube of the handlebar of the handlebar-steered vehicle to which the master device is attached.
  • the distance may, for example, be determined by the perpendicular from the region of the lever to the handlebar tube.
  • the grip span adjusting device may have a bolt with a stop section that interacts with a corresponding stop section formed on the thrust piece.
  • the bolt may have an external thread and may be disposed in an internal thread of the lever so as to be adjustable along the longitudinal axis thereof by being rotated.
  • the grip span adjusting device may have an engagement section for the engagement of a tool for adjusting the grip span.
  • the engagement section for the engagement of a tool for adjusting the grip span may be formed in the bolt.
  • the engagement section may, in an exemplary embodiment, be configured as a hexagonal socket or as some other engagement section that is compatible with common or specially designed tools.
  • the grip span adjusting device may have a preload device that preloads the lever along the pivoting path in the direction of the thrust piece.
  • the preloading imparted by the preload device may be such that the stop section of the bolt is preloaded in the direction of the stop section of the thrust piece.
  • the master device may have a pressure point adjusting and/or brake or clutch lining adjusting device that, in an exemplary embodiment, has a bolt that is held in a receptacle of the thrust piece, with the relative position of the bolt in the receptacle being adjustable.
  • the bolt may be a threaded bolt rotatably disposed in a rotary receptacle that is rotatably disposed in the receptacle of the thrust piece.
  • the invention therefore, also relates to a hydraulic brake and/or hydraulic bicycle brake and/or hydraulic bicycle wheel rim brake and/or hydraulic bicycle disc brake and/or hydraulic clutch and/or hydraulic electric bicycle brake and/or bicycle and/or electric bicycle and/or motorcycle having at least one master device according to the invention.
  • the master device according to the invention may have a grip span adjusting device that is independent, in terms of adjustability, of a wear adjusting device and/or pressure point adjusting device, which are, in an exemplary embodiment, connected to one another by a common thrust piece.
  • the lever of the master device may be formed in two parts from a lever element and a thrust piece element, with the thrust piece being supported on the basic body and/or housing of the master device, and with the lever element being pivotable relative to the thrust piece such that, after an angle between the lever element and thrust piece has been set, the lever element can be rotated together with the thrust piece about a common center of rotation like a normal lever in order to actuate the master device (in such a way that the lever is moved in the direction of the handlebar tube).
  • one end of the wear adjusting device and/or pressure point adjusting device is articulatedly connected to the thrust piece.
  • the setting of the position of the lining for example, brake lining or clutch lining
  • the pressure point of the hydraulic system is not changed during an adjustment of the grip span.
  • the respective adjustments may, therefore, be carried out independently of one another.
  • FIG. 1 is a cross-sectional view of a master device of a hydraulic brake system of handlebar-steered vehicles according to a first exemplary embodiment of the invention
  • FIG. 2 is a top plan view of the master device of FIG. 1 from the outside;
  • FIG. 3 is a cross-sectional view of a master device for a hydraulic brake system of handlebar-steered vehicles according to a further exemplary embodiment of the invention
  • FIG. 4 is a cross-sectional view of a master device for a hydraulic brake system of handlebar-steered vehicles according to another exemplary embodiment of the invention.
  • FIG. 5 is a perspective view of an exemplary embodiment of a covering hood for the system of FIG. 1 ;
  • FIG. 6 is a perspective view of the covering hood of the exemplary embodiment of FIG. 5 ;
  • FIG. 7 is a longitudinal, cross-sectional view of the embodiment of FIG. 1 of the basic body with a hydraulic line connecting element partially screwed in;
  • FIG. 8 is a longitudinal, cross-sectional view of the embodiment from FIG. 1 of the basic body with a hydraulic line connecting element fully screwed in;
  • FIG. 9 is a perspective, longitudinal cross-sectional view of the embodiment from FIG. 1 of the basic body without a hydraulic line connecting element;
  • FIG. 10 is a perspective, longitudinal cross-sectional view of the embodiment from FIG. 1 of the basic body with a hydraulic line connecting element fully screwed in;
  • FIG. 11 is a fragmentary, longitudinal, cross-sectional view of an alternative exemplary embodiment of the invention corresponding to the embodiment of FIG. 7 with the basic body having a hydraulic line connecting element partially screwed in; and
  • FIG. 12 is a fragmentary, longitudinal, cross-sectional view an alternative exemplary embodiment of the invention corresponding to the embodiment of FIG. 8 with the basic body is illustrated with a hydraulic line connecting element fully screwed in.
  • Relational terms such as first and second, top and bottom, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
  • the terms “comprises,” “comprising,” or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
  • An element proceeded by “comprises . . . a” does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
  • the term “about” or “approximately” applies to all numeric values, whether or not explicitly indicated. These terms generally refer to a range of numbers that one of skill in the art would consider equivalent to the recited values (i.e., having the same function or result). In many instances these terms may include numbers that are rounded to the nearest significant figure.
  • FIGS. 1 and 2 there is shown a first exemplary embodiment of a master device for a hydraulic brake system of handlebar-steered vehicles according to a first embodiment of the invention.
  • the master device has a basic body 80 which defines a hydraulic cylinder 86 in which are disposed a pressure chamber 61 and a piston 60 , which is mounted in said pressure chamber in a movable manner and which, in a known way, is sealed off with respect to the hydraulic cylinder 86 by a seal 63 .
  • the slave device may, for example, be a brake cylinder of a hydraulic bicycle wheel rim brake.
  • a brake caliper of a hydraulic bicycle disc brake and/or motorcycle disc brake would also be conceivable.
  • the slave device could also be a part of a hydraulic clutch system.
  • the hydraulic line 1 is connected to the master device by a line connecting element 10 which has a connecting piece 11 onto which the hydraulic line 1 is pressed.
  • the line connecting element 10 also has a thread section 14 with an external thread, by which the line connecting element 10 is screwed into a corresponding thread section 84 , which has an internal thread for receiving the line connecting element 10 , of the basic body 80 .
  • the thread section 14 of the line connecting element is adjoined by a stop 15 , which interacts with an overload prevention stop 85 to prevent the line connecting element 10 from being screwed too far into the basic body 80 .
  • a preferably colored O-ring 16 is provided in a groove of the line connecting element 10 , which O-ring firstly provides sealing with respect to hydraulic fluid and secondly makes it possible to confirm by visual inspection that the line connecting element has been screwed sufficiently far into the basic body 80 , this being the case when the colored O-ring is no longer visible because it is hidden by the basic body 80 .
  • the line connecting element 10 On a projection 12 , the line connecting element 10 has a seal surface 13 which interacts with a seal element 83 of the basic body in order to seal off the line connecting element 10 , which protrudes with the projection 12 into the basic body 80 .
  • the seal element 83 is elastically deformed as a result of the engagement with the seal surface 13 .
  • the basic body 80 may, in an exemplary embodiment, be formed from a plastic or a suitable metal.
  • the plastic may have polyamides.
  • a fiber content of up to 50% is conceivable. Normally, the fiber content should be less than 30%. Glass fibers and/or carbon fibers may, for example, be used.
  • an air bleed opening 87 which, as the line connecting element 10 is screwed into the basic body 80 , is covered by the sealing surface 13 .
  • the air bleed opening 87 is sealed off with respect to the pressure chamber 61 as a result of the screwing-in of the line connecting element 10 because the sealing surface 13 interacts with the seal element 83 .
  • the line connecting element 10 is initially screwed into the basic body 80 only to such an extent that the colored O-ring 16 is still fully visible and a connection exists between the pressure chamber 61 and the air bleed opening 87 .
  • the line connecting element 10 can, therefore, be screwed further into the basic body 80 until the O-ring 16 is no longer visible and the sealing surface 13 interacts with the seal element 83 of the basic body 80 to seal off the air bleed opening 20 .
  • the air bleed opening can be closed off by a closure plug 20 .
  • the line connecting element 10 may be unscrewed from the basic body until the colored O-ring becomes visible. Subsequently, gas can be drawn out through the air bleed opening and/or hydraulic fluid can be filled in and/or hydraulic fluid can be introduced into the system at the slave side.
  • the air bleed opening 87 may for example have a cone, preferably a Luer cone, such that the air bleed opening 87 can be closed off with a commercially available closure plug 20 .
  • the design of the air bleed opening 87 as a Luer cone has the further advantage that, during filling or bleeding, a commercially available syringe, for example, may be inserted into the air bleed opening in order, by suction, to assist the filling or bleeding of the hydraulic system.
  • a commercially available syringe for example, may be inserted into the air bleed opening in order, by suction, to assist the filling or bleeding of the hydraulic system.
  • the master device has a grip span adjusting device 70 .
  • the master device also has a lever 30 with an actuating section 31 .
  • the lever 30 is rotatably mounted on the basic body 80 via a thrust piece 40 .
  • the thrust piece 40 has a rotary bearing receptacle 42 , in which a bearing journal 82 is received.
  • the bearing journal 82 may be fastened to the basic body 80 in a manner known to a person skilled in the art, and may, for example, also be formed in one piece with the basic body 80 .
  • the thrust piece 40 bears with a stop 41 against a thrust piece stop 81 of the basic body 80 .
  • the rider grips the actuating section 31 with his fingers and pulls or pushes the lever 30 in the direction of the handlebar tube (not illustrated) to which the master device is fastened.
  • the grip span should be adjusted for the respective rider to allow for the different lengths of the fingers.
  • the angle ⁇ between the lever 30 and the thrust piece 40 in relation to an axis of rotation about the bearing journal 82 can be adjusted.
  • the direction 39 of the lever 30 has been assumed to be the direction of the actuating section 31 at which the driver acts on the lever during the actuation of the master device.
  • the direction 49 of the thrust piece 40 has been defined as being parallel to the direction of the handlebar tube in the section to which the master device is attached.
  • FIG. 1 shows the angle ⁇ between the lever 30 and thrust piece 40 in relation to the axis of rotation defined by the rotary bearing receptacle 42 or the bearing journal 82 .
  • Other definitions of the angle ⁇ are conceivable. It is important that the angle and, therefore, the distance between the actuating section 31 of the lever 30 and the handlebar tube can be adjusted.
  • the grip span adjusting device 70 has a bolt 71 which is screwed into the lever in a bore. At its end facing away from the handlebar tube, the bolt 71 has an engagement section 72 , which, in an exemplary embodiment, is configured as a hexagonal socket. At its other end, the bolt 71 has a stop section 73 , by which the bolt 71 is supported on a corresponding stop section 43 counter to the force of a preload device 74 . To vary the grip span, the bolt 71 can simply be screwed in the bore formed in the lever, such that the angle ⁇ between the direction 39 of the lever 30 and the direction 49 of the thrust piece 40 changes, without influencing the position of the thrust piece 40 .
  • the master device also has a pressure point adjusting and/or brake or clutch lining adjusting device 50 .
  • the pressure point adjusting and/or brake or clutch lining adjusting device 50 may, for example, be used to compensate wear of the brake linings.
  • wear of the clutch friction linings can be compensated.
  • a receptacle 44 for the pressure point adjusting and/or brake or clutch lining adjusting device 50 is provided in the thrust piece 40 .
  • the pressure point adjusting and/or brake or clutch lining adjusting device 50 has a threaded bolt 51 , which has an external thread and is disposed in a rotary receptacle 52 with an internal thread.
  • the rotary receptacle 52 is rotatably held in the receptacle 44 of the thrust piece 40 .
  • the threaded bolt 51 has a threaded bolt head 54 , which engages into a corresponding bolt receptacle 64 of the piston 60 .
  • the threaded bolt 51 can be adjusted in the direction of the piston 60 such that the pressure point of the master device or the zero position of the master device can be varied. In this way, it is, for example, possible for the wear of brake or clutch linings to be compensated.
  • a rotary knob 53 is provided on that end of the threaded bolt 51 which is situated opposite the threaded bolt head 54 .
  • the angle ⁇ between the direction of the threaded bolt 51 and the direction of the hydraulic cylinder 86 in relation to the point of engagement of the threaded bolt head 54 on the bolt receptacle 64 of the piston 60 varies during the actuation of the master device.
  • the direction of the threaded bolt 51 has been assumed to be the direction parallel to the longitudinal axis or the main axis of the threaded bolt.
  • the direction of the hydraulic cylinder 86 is assumed to be the direction along the cylinder main axis or the direction in which the piston is movably disposed.
  • the angle is defined in relation to the point of engagement of the threaded bolt head 54 on the bolt receptacle 64 of the piston 60 .
  • the angle ⁇ would always be approximately zero degrees during the actuation of the master device. This is not practically possible. Therefore, the angle ⁇ is set such that the angle ⁇ is small at the start of the actuation and becomes smaller, or falls to zero, during the actuation.
  • the angle ⁇ may also point in the other direction at least within a short period of the actuation, that is to say, the direction 59 in FIG. 1 would be below the direction 89 and would point from bottom right to top left. At the end of the actuation, the angle ⁇ may become greater again or change its direction and then become greater again.
  • a grommet 90 is provided in the region of the line connecting element 10 , which grommet 90 surrounds the hydraulic line 1 and the front region of the basic body 80 .
  • a covering hood 100 is provided in the rear region.
  • the master device advantageously also has an actuation sensor device 110 .
  • the actuation sensor device 110 may, for example, comprise a magnet 111 and a Hall sensor 112 , which detects when the magnet comes into the proximity of the Hall sensor, and thereby detects an actuation of the master device. Alternatively or in addition thereto, a reed contact may also be used. Possible locations for disposing the magnet/Hall sensor pairs are shown in FIGS. 3 and 4 , which positions may be used alternatively or in any desired combination. Said figures are intended to show substantially only different arrangements of the actuation sensor device 110 ; reference is, therefore, made otherwise to the description in connection with FIGS. 1 and 2 .
  • circumferentially symmetrical signal transducers may also be provided, for example, two magnet half-shells or encircling magnets or other signal transducers or position transducers which are known to a person skilled in the art which are used for detecting positions.
  • an anti-rotation facility of the piston may also be configured to additionally prevent the piston from falling out of the cylinder chamber in which it is held.
  • the magnet 111 could be disposed in the piston 60 and the Hall sensor 112 could be arranged disposed under the covering hood 100 outside the basic body 80 .
  • the magnet 111 could be provided in a projection of the thrust piece 40 and the Hall sensor 112 could be provided in the basic body 80 above the fastening device 120 .
  • the actuating signal could, for example, be used as a signal for switching on a brake light.
  • the master device also has a fastening device 120 having a handlebar tube fastening section 121 which can be fastened to the handlebar tube by means of a clamp 122 .
  • the handlebar tube fastening section 121 has an enclosure angle of approximately 185°. In this way, to mount the master device, it is possible simply to clamp the handlebar tube fastening section 121 onto the handlebar tube and to subsequently secure it using the clamp 122 , which is fastened to the handlebar tube fastening section 121 for example by means of two screws which are arranged on opposite sides of the clamp 122 in relation to the handlebar tube.
  • FIG. 1 shows a state before the connection of the handlebar tube fastening section 121 to the clamp 122
  • FIG. 2 shows a state in which the clamp has been attached to the handlebar tube fastening section 121 .
  • a combined switching and display device 130 is also provided in the basic body 80 .
  • a switching device or display device may be provided, or a plurality of devices may be provided for displaying and for switching respectively. It is, for example, possible for the selected spring characteristic of a spring fork to be switched and/or displayed.
  • FIGS. 5 and 6 show the covering hood 100 of the embodiment according to the invention of FIG. 1 in detail.
  • the covering hood 100 has two rotary joints 101 designed to be received in corresponding receptacles of the basic body 80 and/or of the grommet 90 .
  • the covering hood 100 has two snap-action fastening elements 102 , which engage into corresponding receptacles, which are provided, for example, on the basic body 80 , during the mounting of the covering hood.
  • FIGS. 7 and 8 respectively show the basic body 80 with a hydraulic line connecting element 10 partially screwed in and with a hydraulic line connecting element fully screwed in.
  • FIG. 7 shows the open position of the valve and
  • FIG. 8 shows the closed position of the valve.
  • the restoring spring 62 and the seal 63 are illustrated.
  • FIGS. 9 and 10 show perspective cross-sectional views of the basic body 80 , wherein in FIG. 9 , the hydraulic connecting element has been omitted, and in FIG. 10 , the hydraulic connecting element is shown in the fully screwed-in position (that is to say in the closed position of the valve).
  • the crown 65 as an additional securing measure for the closed position, engages behind a collar at the end of the projection 12 of the hydraulic line connecting element.
  • the crown 65 functions as a travel delimitation for the projection 12 or the hydraulic line connecting element 10 .
  • FIGS. 11 and 12 show a further exemplary embodiment of the invention which substantially corresponds to the embodiment shown inter alia in FIGS. 7 and 8 .
  • the corresponding parts are denoted by the same reference numerals, increased by the value of 200 .
  • the embodiment of the invention shown in FIGS. 11 and 12 has a seal 213 (for example, an O-ring) and a seal surface 283 that interacts therewith.
  • the seal 213 forms, with the seal surface 283 , a valve that is open in the position shown in FIG. 11 , that is to say, opens up the connection between the air bleed opening 287 and the pressure chamber 261 , and which is closed in the position shown in FIG. 12 , that is to say, closes off the connection between the air bleed opening 287 and the pressure chamber 261 .
  • the line connecting element 210 has a collar 218 which, in the position shown in FIG. 12 , abuts against or adjoins the basic body 280 . In this way, the abutment of the collar 218 against the basic body 280 prevents the hydraulic connecting element 210 from being screwed too far into the basic body 280 .
  • the plug 20 could be integrated in the grommet 90 .
  • the invention therefore, also relates to a master device, in particular, of a hydraulic bicycle wheel rim brake with a brake lining adjusting device and a grip span adjusting device that is independent thereof (that is to say, the adjustment of the grip span does not influence the setting of the linings) and also a thrust piece that is supported on the basic body of the master device and that supports the lever of the master device and holds a part of the brake lining adjusting device.
  • the grip span adjusting device defines a certain fixed angle between the lever and the thrust piece.
  • the thrust piece and, therefore, the lever are rotatably mounted on the basic body of the master device.
  • the brake lining adjustment may take place independently of the grip span adjustment because the adjustment of the grip span does not change the position of the thrust piece.
  • the brake lining adjusting device advantageously engages on the brake lining adjusting device.
  • the brake lining adjusting device or the pressure point adjusting device may be actuated without the use of tools (in a tool-free manner).
  • the invention therefore, also relates to a master device, in particular, of a hydraulic bicycle wheel rim brake having a grip span adjusting device and a lining adjusting and/or pressure point adjusting device that can be adjusted independently of said grip span adjusting device.
  • the invention therefore, also relates to an actuating fitting, in particular, for hydraulic wheel rim brakes for a bicycle, having a fitting housing that has fastening measures for fastening the actuating fitting to a handlebar tube, a steering column or similar steering element of a handlebar-steered vehicle, having a hand lever rotatably mounted on the fitting housing, having a hydraulic force transmission device disposed on or in the fitting housing, and having a thrust piece having a common rotary bearing for the hand lever and the thrust piece.
  • a grip span adjusting device is provided on the thrust piece and the hand lever (or between the thrust piece and the hand lever), and a lining adjusting and/or pressure point adjusting device is provided on the thrust piece and the hydraulic force transmission device (or between the thrust piece and the force transmission device).
  • Said embodiment of the invention has the advantage that the grip span can be adjusted independently of the position of the lining or the pressure point of the system. In the zero position (non-actuated state), the thrust piece is supported on the housing and, thereby, defines a fixed initial position for the adjustment of the position of the lining or of the pressure point of the hydraulic force transmission system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Earth Drilling (AREA)
  • Actuator (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
US13/409,880 2009-09-01 2012-03-01 Master device for a closed hydraulic system of handlebar-steered vehicles Expired - Fee Related US8398106B2 (en)

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US13/713,405 US8511700B1 (en) 2009-09-01 2012-12-13 Master device for a closed hydraulic system of handlebar-steered vehicles

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102009039620 2009-09-01
DE102009039620.9 2009-09-01
DE102009039620A DE102009039620A1 (de) 2009-09-01 2009-09-01 Gebervorrichtung für ein geschlossenes Hydrauliksystem lenkergeführter Fahrzeuge
PCT/EP2010/062726 WO2011026843A2 (fr) 2009-09-01 2010-08-31 Dispositif émetteur pour un système hydraulique fermé de véhicules à guidon

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/062726 Continuation-In-Part WO2011026843A2 (fr) 2009-09-01 2010-08-31 Dispositif émetteur pour un système hydraulique fermé de véhicules à guidon

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US13/713,405 Division US8511700B1 (en) 2009-09-01 2012-12-13 Master device for a closed hydraulic system of handlebar-steered vehicles

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US20120161420A1 US20120161420A1 (en) 2012-06-28
US8398106B2 true US8398106B2 (en) 2013-03-19

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US13/713,405 Expired - Fee Related US8511700B1 (en) 2009-09-01 2012-12-13 Master device for a closed hydraulic system of handlebar-steered vehicles

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EP (2) EP2473394B1 (fr)
CN (1) CN102596669B (fr)
DE (1) DE102009039620A1 (fr)
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US12024260B2 (en) 2020-07-23 2024-07-02 Hayes Bicycle Group Inc. Brake assembly

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US9365260B2 (en) 2012-04-18 2016-06-14 Shimano Inc. Bicycle hydraulic operating device
US9227692B2 (en) * 2012-08-03 2016-01-05 Shimano Inc. Hydraulic bicycle component system
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CN105398529B (zh) * 2014-09-15 2018-05-25 利奇机械工业股份有限公司 自行车刹车控制组
CN105882858A (zh) * 2015-01-04 2016-08-24 张小红 带开关可调油压碟刹
US9827968B2 (en) 2015-01-12 2017-11-28 Sram, Llc Hydraulic bicycle system
DE102015107787A1 (de) 2015-05-19 2016-11-24 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Kupplungsaktuator mit automatischem Verschleißausgleich
US9650105B2 (en) * 2015-05-27 2017-05-16 Shimano Inc. Bicycle operating device
US9963192B2 (en) * 2016-02-01 2018-05-08 Shimano Inc. Non-metallic bracket for a bicycle hydraulic component
DE102017124103A1 (de) * 2017-10-17 2019-04-18 Shimano Inc. Hydrauliksteuervorrichtung
US11124263B2 (en) * 2018-07-06 2021-09-21 Hayes Bicycle Group Inc. Brake system
WO2020031464A1 (fr) * 2018-08-10 2020-02-13 本田技研工業株式会社 Dispositif de génération de force réactive de système d'embrayage par fil, et dispositif de levier d'embrayage
US11286017B2 (en) * 2018-12-27 2022-03-29 Msns, Llc Adjustable brake lever sensor system
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US20210060372A1 (en) * 2019-08-30 2021-03-04 Foundation Fitness, LLC Exercise bicycle brake assembly for providing variable braking signals
DE102021128118B3 (de) 2021-10-28 2022-11-24 FAHRWERKER GmbH Hydraulikarmatur
CN115056904B (zh) * 2022-06-24 2023-05-26 珠海蓝图运动科技股份有限公司 一种自行车液压刹车控制装置及自行车
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KR20240129314A (ko) * 2023-02-20 2024-08-27 에이치엘만도 주식회사 브레이크 조작 장치 및 이를 구비한 자전거

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US12024260B2 (en) 2020-07-23 2024-07-02 Hayes Bicycle Group Inc. Brake assembly

Also Published As

Publication number Publication date
CN102596669B (zh) 2015-05-27
TW201627196A (zh) 2016-08-01
WO2011026843A3 (fr) 2012-05-03
US20120161420A1 (en) 2012-06-28
CN102596669A (zh) 2012-07-18
EP2484569A1 (fr) 2012-08-08
WO2011026843A2 (fr) 2011-03-10
TWI523791B (zh) 2016-03-01
TW201118004A (en) 2011-06-01
US8511700B1 (en) 2013-08-20
TWI570015B (zh) 2017-02-11
DE102009039620A1 (de) 2011-03-03
US20130228407A1 (en) 2013-09-05
EP2473394B1 (fr) 2019-04-03
EP2473394A2 (fr) 2012-07-11

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